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package org.put.netbeans.dcs_modeler;

import java.io.File;
import javax.swing.JFileChooser;
import javax.swing.JPanel;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.Document;
import org.netbeans.spi.project.ui.support.ProjectChooser;
import org.openide.WizardDescriptor;
import org.openide.WizardValidationException;
import org.openide.filesystems.FileUtil;

public class ComputingWorkflowProjectPanelVisual extends JPanel implements DocumentListener {

    public static final String PROP_PROJECT_NAME = "projectName";

    private ComputingWorkflowProjectWizardPanel panel;

    public ComputingWorkflowProjectPanelVisual(ComputingWorkflowProjectWizardPanel panel) {
        initComponents();
        this.panel = panel;
        // Register listener on the textFields to make the automatic updates
        projectNameTextField.getDocument().addDocumentListener(this);
        projectLocationTextField.getDocument().addDocumentListener(this);
    }

    public String getProjectName() {
        return this.projectNameTextField.getText();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        projectNameLabel = new javax.swing.JLabel();
        projectNameTextField = new javax.swing.JTextField();
        projectLocationLabel = new javax.swing.JLabel();
        projectLocationTextField = new javax.swing.JTextField();
        browseButton = new javax.swing.JButton();
        createdFolderLabel = new javax.swing.JLabel();
        createdFolderTextField = new javax.swing.JTextField();

        projectNameLabel.setLabelFor(projectNameTextField);
        org.openide.awt.Mnemonics.setLocalizedText(projectNameLabel, "Project &Name:");

        projectLocationLabel.setLabelFor(projectLocationTextField);
        org.openide.awt.Mnemonics.setLocalizedText(projectLocationLabel, "Project &Location:");

        org.openide.awt.Mnemonics.setLocalizedText(browseButton, "Br&owse...");
        browseButton.setActionCommand("BROWSE");
        browseButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                browseButtonActionPerformed(evt);
            }
        });

        createdFolderLabel.setLabelFor(createdFolderTextField);
        org.openide.awt.Mnemonics.setLocalizedText(createdFolderLabel, "Project &Folder:");

        createdFolderTextField.setEditable(false);

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(projectNameLabel)
                    .add(projectLocationLabel)
                    .add(createdFolderLabel))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, projectNameTextField, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 191, Short.MAX_VALUE)
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, projectLocationTextField, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 191, Short.MAX_VALUE)
                    .add(org.jdesktop.layout.GroupLayout.TRAILING, createdFolderTextField, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 191, Short.MAX_VALUE))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(browseButton)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(projectNameLabel)
                    .add(projectNameTextField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(projectLocationLabel)
                    .add(projectLocationTextField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(browseButton))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(createdFolderLabel)
                    .add(createdFolderTextField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(213, Short.MAX_VALUE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void browseButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_browseButtonActionPerformed
        String command = evt.getActionCommand();
        if ("BROWSE".equals(command)) {
            JFileChooser chooser = new JFileChooser();
            FileUtil.preventFileChooserSymlinkTraversal(chooser, null);
            chooser.setDialogTitle("Select Project Location");
            chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
            String path = this.projectLocationTextField.getText();
            if (path.length() > 0) {
                File f = new File(path);
                if (f.exists()) {
                    chooser.setSelectedFile(f);
                }
            }
            if (JFileChooser.APPROVE_OPTION == chooser.showOpenDialog(this)) {
                File projectDir = chooser.getSelectedFile();
                projectLocationTextField.setText(FileUtil.normalizeFile(projectDir).getAbsolutePath());
            }
            panel.fireChangeEvent();
        }

    }//GEN-LAST:event_browseButtonActionPerformed
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton browseButton;
    private javax.swing.JLabel createdFolderLabel;
    private javax.swing.JTextField createdFolderTextField;
    private javax.swing.JLabel projectLocationLabel;
    private javax.swing.JTextField projectLocationTextField;
    private javax.swing.JLabel projectNameLabel;
    private javax.swing.JTextField projectNameTextField;
    // End of variables declaration//GEN-END:variables
    @Override
    public void addNotify()
    {
        super.addNotify();
        //same problem as in 31086, initial focus on Cancel button
        projectNameTextField.requestFocus();
    }

    boolean valid( WizardDescriptor wizardDescriptor )
    {

        if ( projectNameTextField.getText().length() == 0 )
        {
            wizardDescriptor.putProperty( "WizardPanel_errorMessage",
                                          "Project Name is not a valid folder name." );
            return false; // Display name not specified
        }
        File f = FileUtil.normalizeFile( new File( projectLocationTextField.getText() ).getAbsoluteFile() );
        if ( !f.isDirectory() )
        {
            String message = "Project Folder is not a valid path.";
            wizardDescriptor.putProperty( "WizardPanel_errorMessage", message );
            return false;
        }
        final File destFolder = FileUtil.normalizeFile( new File( createdFolderTextField.getText() ).getAbsoluteFile() );

        File projLoc = destFolder;
        while ( projLoc != null && !projLoc.exists() )
        {
            projLoc = projLoc.getParentFile();
        }
        if ( projLoc == null || !projLoc.canWrite() )
        {
            wizardDescriptor.putProperty( "WizardPanel_errorMessage",
                                          "Project Folder cannot be created." );
            return false;
        }

        if ( FileUtil.toFileObject( projLoc ) == null )
        {
            String message = "Project Folder is not a valid path.";
            wizardDescriptor.putProperty( "WizardPanel_errorMessage", message );
            return false;
        }

        File[] kids = destFolder.listFiles();
        if ( destFolder.exists() && kids != null && kids.length > 0 )
        {
            // Folder exists and is not empty
            wizardDescriptor.putProperty( "WizardPanel_errorMessage",
                                          "Project Folder already exists and is not empty." );
            return false;
        }
        wizardDescriptor.putProperty( "WizardPanel_errorMessage", "" );
        return true;
    }

    void store( WizardDescriptor d )
    {
        String name = projectNameTextField.getText().trim();
        String folder = createdFolderTextField.getText().trim();

        d.putProperty( "projdir", new File( folder ) );
        d.putProperty( "name", name );
    }

    void read( WizardDescriptor settings )
    {
        File projectLocation = ( File ) settings.getProperty( "projdir" );
        if ( projectLocation == null || projectLocation.getParentFile() == null || !projectLocation.getParentFile().isDirectory() )
        {
            projectLocation = ProjectChooser.getProjectsFolder();
        } else
        {
            projectLocation = projectLocation.getParentFile();
        }
        this.projectLocationTextField.setText( projectLocation.getAbsolutePath() );

        String projectName = ( String ) settings.getProperty( "name" );
        if ( projectName == null )
        {
            projectName = "ComputingWorkflowProject";
        }
        this.projectNameTextField.setText( projectName );
        this.projectNameTextField.selectAll();
    }

    void validate( WizardDescriptor d ) throws WizardValidationException
    {
    // nothing to validate
    }

    // Implementation of DocumentListener --------------------------------------
    public void changedUpdate( DocumentEvent e )
    {
        updateTexts( e );
        if ( this.projectNameTextField.getDocument() == e.getDocument() )
        {
            firePropertyChange( PROP_PROJECT_NAME, null, this.projectNameTextField.getText() );
        }
    }

    public void insertUpdate( DocumentEvent e )
    {
        updateTexts( e );
        if ( this.projectNameTextField.getDocument() == e.getDocument() )
        {
            firePropertyChange( PROP_PROJECT_NAME, null, this.projectNameTextField.getText() );
        }
    }

    public void removeUpdate( DocumentEvent e )
    {
        updateTexts( e );
        if ( this.projectNameTextField.getDocument() == e.getDocument() )
        {
            firePropertyChange( PROP_PROJECT_NAME, null, this.projectNameTextField.getText() );
        }
    }

    /** Handles changes in the Project name and project directory, */
    private void updateTexts( DocumentEvent e )
    {

        Document doc = e.getDocument();

        if ( doc == projectNameTextField.getDocument() || doc == projectLocationTextField.getDocument() )
        {
            // Change in the project name

            String projectName = projectNameTextField.getText();
            String projectFolder = projectLocationTextField.getText();

            //if (projectFolder.trim().length() == 0 || projectFolder.equals(oldName)) {
            createdFolderTextField.setText( projectFolder + File.separatorChar + projectName );
        //}

        }
        panel.fireChangeEvent(); // Notify that the panel changed
    }
}
